Rivet numbering and aligning machine

Abstract

The application discloses a rivet number counting and aligning machine, which comprises a workbench and a working box which are fixedly connected and arranged adjacently. A control mechanism, a driving mechanism and a material taking mechanism are installed in the working box, the driving mechanism drives the material taking mechanism to act, and the control mechanism is connected with the driving mechanism. A hopper, a limiting assembly, a material guiding assembly and a counting assembly are installed in the workbench, the limiting assembly is installed between the hopper and the material guiding assembly, and the counting assembly is installed at a position adjacent to the material guiding assembly. Rivets are loaded in the hopper, the control mechanism controls the driving mechanism to drive the material taking mechanism to act, the material taking mechanism takes the rivets from the hopper, and drives the rivets to pass through the limiting assembly and enter the material guiding assembly, wherein the limiting assembly only allows one rivet to pass through at a time, the rivets entering the material guiding assembly are adjusted in posture and aligned into a single column, the rivets aligned into the single column pass through the counting assembly, the counting assembly counts the rivets, and when the count reaches a predetermined number, the control mechanism stops the driving mechanism from acting.

Description

Technical Field

[0001] This invention relates to the field of automotive manufacturing technology, and more specifically, to the field of auxiliary tools used in riveting processes. Background Technology

[0002] The most commonly used mechanical connection structures in existing technologies include riveting and welding. Rivets used in riveting structures mainly include open-type blind rivets, closed-type rivets, and grooved rivets. A rivet is a nail-shaped object used to connect two parts (or components) with through holes and a cap at one end. In riveting, the riveted parts are connected by their own deformation or interference fit. There are many types of rivets, and they are not limited to any particular form. In structures with low requirements for mechanical strength and vibration, open-type and closed-type blind rivets are mainly used, while in structures with high requirements for structural strength, grooved rivets are mainly used. In the fields of railways, aviation, shipbuilding, and construction, the tensile and shear strength of grooved rivets of the same specifications is higher than that of ordinary blind rivets. One form of welding structure utilizes the fit between welding studs and nuts, where welding studs mainly include energy storage welding studs and arc welding studs. In welded structures using welding studs, a corresponding nut that mates with the thread of the welding stud is required to secure the connected parts. Both riveted structures and welded structures using studs utilize nail-shaped components, namely rivets and studs.

[0003] On the current production line, workers need to manually take multiple rivets or welding studs from the material box, and then sort the rivets or welding studs in both directions. When doing this manually, workers may take the wrong number of rivets or welding studs due to negligence, which will affect the processing efficiency and is also time-consuming and labor-intensive for workers. Summary of the Invention

[0004] According to an embodiment of the present invention, a rivet counting and aligning machine is provided, characterized in that it comprises: a work frame and a work box, the work frame and the work box being arranged adjacently and fixedly connected. A control mechanism, a drive mechanism, and a material picking mechanism are installed inside the work box. The material picking mechanism is installed at the junction of the work frame and the work box. The drive mechanism drives the material picking mechanism to operate. The control mechanism is connected to the drive mechanism. A hopper, a limiting component, a guiding component, and a counting component are installed inside the work frame. The hopper and the guiding component are arranged adjacently. The limiting component is installed between the hopper and the guiding component. The counting component is installed adjacent to the guiding component and is connected to the control mechanism. Rivets are loaded in the hopper. The control mechanism controls the drive mechanism to drive the picking mechanism. The picking mechanism picks up the rivets from the hopper and drives them through the limiting component and into the guiding component. The limiting component allows only one rivet to pass through at a time. The rivets entering the guiding component are adjusted and arranged into a single row. The rivets arranged into a single row pass through the counting component, which counts the rivets. When the count reaches a predetermined number, the control mechanism stops the drive mechanism.

[0005] In one embodiment, the driving mechanism includes a servo motor, and the material handling mechanism includes a rotating disk. A connecting frame is installed inside the work box near one end of the work frame. The servo motor is mounted on the connecting frame, and its output end extends to the junction of the work frame and the work box. The rotating disk is mounted on the output end of the servo motor, located at the junction of the work box and the work frame. A magnetic stone is installed on the rotating disk. The servo motor drives the rotating disk to rotate, and the rivets in the hopper are picked up by the magnetic stone.

[0006] In one embodiment, the control mechanism includes a controller and a counter, and the counting component includes a counting sensor module. A connecting plate is installed inside the work box at the end furthest from the work frame. The controller and the counter are mounted on the connecting plate. The counter is electrically connected to the counting sensor module and controls the counting sensor module to perform counting. The controller is electrically connected to the servo motor, the counting sensor module, and the counter, and controls the servo motor, the counting sensor module, and the counter.

[0007] In one embodiment, the guiding assembly includes a guide hopper, a guide plate, and a guide rail. The first end of the guide rail extends below the second end of the guide hopper, and the second end of the guide rail extends to the position of the second end of the work frame. The guide rail is inclined, with the first end of the guide rail higher than the second end. The spacing of the guide rail matches the size of the rivets, which is greater than the diameter of the rivet body but less than the diameter of the rivet head. The guide plate forms inclined sidewalls on both sides of the guide rail. Rivets falling from the guide hopper are guided to the guide rail by the guide plate. The rivets falling from the guide hopper are adjusted in posture by the action of the guide plate and the guide rail, so that the rivets are arranged in a single row on the guide rail with the rivet head facing upward.

[0008] In one embodiment, the second end of the guide rail is fixed to a mounting bracket located near the second end of the work frame. The middle portion of the guide rail is supported by a fixed bracket installed on the half of the guide rail near the second end, and the height of the fixed bracket is higher than that of the mounting bracket. A support bracket is mounted on the guide rail, and a guide plate is mounted on the support bracket.

[0009] In one embodiment, the limiting component includes a first connecting block and a second connecting block, which are mounted on the top of the hopper. The second connecting block is disposed on one side of the first connecting block, and a limiting groove is provided at one end of the second connecting block, extending to the position of the first connecting block. The size of the limiting groove allows only a single rivet to pass through.

[0010] In one embodiment, the bottom of the hopper is inclined, with the second end of the bottom of the hopper being higher than the first end.

[0011] In one embodiment, the rotating disk has an installation groove, the magnetic stone is installed in the installation groove, the rotating disk is fixedly connected to a fixing plate at the position of the installation groove, the fixing plate has a placement groove, the placement groove is placed in the placement groove, the installation block has a buckle on the side facing the work box, and the installation block has a fixing block on the side facing the work frame. The fixing block protrudes from the surface of the fixing plate and extends into the installation groove, and the magnetic stone is fixed by the fixing block.

[0012] In one embodiment, the fixed plate has a transmission cavity and a moving groove, the directions of which are perpendicular to each other. A moving groove is connected to each end of the transmission cavity. A bidirectional lead screw is installed inside the transmission cavity. A push plate is installed in each moving groove, one end of which is threaded to the bidirectional lead screw. Two push plates are installed on the bidirectional lead screw at opposite thread positions. A locking pin is installed at the other end of the push plate, protruding from the push plate toward the mounting block. The mounting block has a locking groove, the position of which corresponds to the locking pin. The locking pin is embedded in the locking groove, and the push plate fixes the mounting block to the fixed plate. In one embodiment, a transmission groove is provided on the fixed plate, and a bidirectional lead screw extends from the transmission cavity into the transmission groove. A worm gear is fitted on the portion of the bidirectional lead screw located in the transmission groove. A worm is installed in the transmission groove, with one end of the worm installed in the transmission groove and the other end of the worm having a second bevel gear. The worm gear and the worm mesh to form a transmission connection. A transmission rod is installed on the side of the transmission groove away from the bidirectional lead screw. One end of the transmission rod is installed inside the transmission groove, and the other end extends outside the transmission groove. A knob is installed on the end of the transmission rod extending outside the transmission groove. A first bevel gear is installed on the portion of the transmission rod located inside the transmission groove, and the first bevel gear and the second bevel gear mesh to form a transmission connection.

[0013] The rivet counting and aligning machine of the present invention has the following beneficial effects: 1) This rivet sorting machine is equipped with a hopper, a rotating disk, and magnetic stones. Rivets are poured into the hopper, and then the output of the servo motor drives the rotating disk to rotate. The magnetic stones attract the rivets inside the hopper, and the magnetic stones carry the rivets through a limiting groove into the guide hopper. During the process of passing through the limiting groove, the magnetic stones can only drop the rivets into the guide hopper one by one, so that the rivets can be automatically grabbed. Through the specially designed guide hopper, guide plate and guide rail, the rivets are arranged in order with the large end facing up, so as to facilitate the workers to pick up the rivets.

[0014] 2) This rivet counting and aligning machine is equipped with a counting sensor module, a guide rail, and a counter. The rivets on the guide rail slide to one end of the guide rail. The counting sensor module counts the rivets. When the counter detects that the number of counted rivets has reached the set number of rivets, the servo motor stops working. Then the operator removes the counted and aligned rivets from the guide rail, thus enabling the counting of rivets and facilitating their use. Attached Figure Description

[0015] Figure 1 A top view of a rivet numbering and aligning machine according to an embodiment of the present invention is shown.

[0016] Figure 2 A side view of the first connecting block and the second connecting block of a rivet numbering and aligning machine according to an embodiment of the present invention is disclosed.

[0017] Figure 3 A schematic diagram of the rotating disk of a rivet counting and aligning machine according to an embodiment of the present invention is disclosed.

[0018] Figure 4 A three-dimensional structural diagram of the guide bucket, guide plate, and guide rail of a rivet numbering and aligning machine according to an embodiment of the present invention is disclosed.

[0019] Figure 5 A schematic diagram of the structure of the fixing plate of a rivet numbering and aligning machine according to an embodiment of the present invention is disclosed.

[0020] Figure 6 A rear view structural schematic diagram of the rotating disk of a rivet counting and aligning machine according to an embodiment of the present invention is disclosed.

[0021] Figure 7 for Figure 1 Enlarged view of point A in the middle.

[0022] Figure 8 for Figure 5 Enlarged view of section B in the middle.

[0023] The reference numerals in the figures are as follows: 1. Work frame; 2. Work box; 3. Connecting frame; 4. Servo motor; 5. Rotary disk; 6. Magnetic stone; 7. Hopper; 8. First connecting block; 9. Second connecting block; 10. Guide bucket; 11. Guide plate; 12. Guide rail; 13. Fixing frame; 14. Counting sensor module; 15. Mounting frame; 16. Connecting plate; 17. Controller; 18. Counter; 19. Limiting slot; 20. Support 21. Support frame; 22. Mounting slot; 23. Mounting block; 24. Fixing plate; 25. Placement slot; 26. Transmission cavity; 27. Two-way lead screw; 28. Moving slot; 29. ​​Push plate; 30. Locking post; 31. Locking groove; 32. Transmission slot; 33. Transmission rod; 34. Worm gear; 35. First bevel gear; 36. Second bevel gear; 37. Buckle; 38. Knob; 39. Handle; 40. Fixing block; 41. Side door. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. It should be understood that in the following embodiments, the application of rivets is used as an example for illustration. Those skilled in the art will understand that this rivet counting and aligning machine can also be applied to other nail-shaped parts with similar shapes, such as welding studs.

[0025] refer to Figure 1 As shown, Figure 1 A top view of a rivet counting and aligning machine according to an embodiment of the present invention is shown. The rivet counting and aligning machine includes a work frame 1 and a work box 2, which are adjacent and fixedly connected. In the illustrated embodiment, the work frame 1 and the work box 2 have the same width, and the work box 2 is fixedly connected to one side of the work frame 1 in the length direction. In the illustrated embodiment, the upper part is referred to as the first end, and the lower part as the second end. The second end of the work box 2 is fixedly connected to the first end of the work frame 1. A control mechanism, a drive mechanism, and a material picking mechanism are installed inside the work box 2. The material picking mechanism is installed at the junction of the work frame 1 and the work box 2. The drive mechanism drives the material picking mechanism to operate, and the control mechanism is connected to the drive mechanism. A hopper 7, a limiting component, a guiding component, and a counting component are installed inside the work frame 1. The hopper 7 and the guiding component are adjacent, the limiting component is installed between the hopper 7 and the guiding component, and the counting component is installed adjacent to the guiding component. The counting component is connected to the control mechanism. Rivets are loaded in hopper 7. The control mechanism controls the drive mechanism to drive the picking mechanism. The picking mechanism picks up the rivets from hopper 7 and drives them through the limiting component and into the guiding component. The limiting component allows only one rivet to pass through at a time. The rivets in the guiding component are adjusted and arranged into a single row. The rivets arranged into a single row pass through the counting component, which counts the rivets. When the count reaches a predetermined number, the control mechanism stops the drive mechanism.

[0026] exist Figure 1In the illustrated embodiment, the drive mechanism includes a servo motor 4, the material handling mechanism includes a rotating disk 5, the control mechanism includes a controller 17 and a counter 18, and the counting component includes a counting sensor module 14. Inside the workbox 2, a connecting frame 3 is installed near the second end (i.e., near the end of the work frame 1). The servo motor 4 is mounted on the connecting frame 3. In one embodiment, the servo motor 4 is mounted on the top of the connecting frame 3. The connecting frame 3 and the servo motor 4 are located near the second end of the workbox 2, so the output end of the servo motor 4 can extend to the junction of the workbox 2 and the work frame 1. The rotating disk 5 is mounted on the output end of the servo motor 4, and its position is exactly at the junction of the workbox 2 and the work frame 1. The first side (the upper side shown in the figure) of the rotating disk 5 is located inside the workbox 2, and the second side (the lower side shown in the figure) of the rotating disk 5 is located inside the work frame 1. A magnetic stone 6 is mounted on the rotating disk 5. Figure 3 A schematic diagram of the rotating disk of a rivet counting and aligning machine according to an embodiment of the present invention is shown. Figure 3 In the illustrated embodiment, four magnetic stones 6 are mounted on the rotating disk 5, and the four magnetic stones 6 are distributed at equal intervals on the same circumference. Inside the work box 2, a connecting plate 16 is installed near the first end (i.e., the end away from the work frame 1), and a controller 17 and a counter 18 are mounted on the connecting plate 16. In the illustrated embodiment, both the controller 17 and the counter 18 are mounted on the top of the connecting plate 16. The counter 18 is electrically connected to the counting sensor module 14 in the work frame 1, and the operator can control the counting sensor module 14 by operating the counter 18, thereby performing fixed-number control of the rivets. The controller 17 controls the overall electromechanical equipment of the rivet fixed-number alignment machine. Specifically, the controller 17 is electrically connected to the servo motor 4, the counting sensor module 14, and the counter 18, and the operator can control the servo motor 4, the counting sensor module 14, and the counter 18 through the controller 17.

[0027] Inside the work frame 1, near the first end, a hopper 7 and a material guiding assembly are installed. The material guiding assembly includes a guide hopper 10, a guide plate 11, and a guide rail 12. The hopper 7 and the guide hopper 10 are arranged side by side and adjacent to each other. Figure 1 In the illustrated embodiment, hopper 7 is located on the right side of the figure, and guide hopper 10 is located on the left side. A limiting component is installed between hopper 7 and guide hopper 10. In the illustrated embodiment, the limiting component includes a first connecting block 8 and a second connecting block 9. Specifically, the top of hopper 7 is provided with the first connecting block 8 and the second connecting block 9 as limiting components, and the first connecting block 8 and the second connecting block 9 are arranged adjacent to each other. Figure 2 A side view of the first and second connecting blocks of a rivet counting and aligning machine according to an embodiment of the present invention is shown. (Reference) Figure 2 As shown, the second connecting block 9 is disposed on one side of the first connecting block 8. Figure 2 The diagram shows the second connecting block 9 located outside the first connecting block in the paper direction. One end of the second connecting block 9 has a limiting groove 19. In the illustrated embodiment, the right end of the second connecting block 9 also has a limiting groove 19, which extends to the position of the first connecting block 8. Figure 2 In the illustrated embodiment, the limiting groove 19 starts from the position of the second connecting block 9, extends inward along the paper direction, and reaches the position of the first connecting block 8. The limiting groove 19 is sized to allow only a single rivet to pass through. The material guiding assembly includes a guide hopper 10, a guide plate 11, and a guide rail 12. Figure 4 A three-dimensional structural diagram of the guide bucket, guide plate, and guide rail of a rivet counting and aligning machine according to an embodiment of the present invention is shown, illustrating the structure of the material guiding assembly. The sidewall of the guide bucket 10 is inclined, forming a shape that gradually opens from the bottom upwards. The bottom of the guide bucket 10 is also inclined, with a higher position near the first end and gradually decreasing towards the second end. This shape of the guide bucket 10 allows the rivets in the guide bucket 10 to gather at the bottom and slide towards the second end on their own. The first end of the guide rail 12 extends to below the second end of the guide bucket 10 (see reference). Figure 4 As shown), the second end of the guide rail 12 extends to the second end of the work frame 1 (see reference). Figure 1 (As shown). Because the guide rail 12 is relatively long, in the illustrated embodiment, auxiliary components are used to support and secure the guide rail 12. The second end of the guide rail 12 is fixed to the mounting bracket 15. Figure 1 In the illustrated embodiment, the mounting bracket 15 is located near the second end of the work frame 1, so the second end of the guide rail 12 extends to the second end of the work frame 1. The middle portion of the guide rail 12 is supported by a fixing bracket 13, which is typically mounted on the half of the guide rail near the second end. Figure 1 In the illustrated embodiment, the retainer 13 is mounted approximately one-third of the way down the guide rail from the second end. The retainer 13 is typically taller than the mounting bracket 15, causing the guide rail 12 to be tilted, with the first end higher than the second end. The spacing of the guide rails 12 matches the size of the rivets, being slightly larger than the diameter of the rivet body but smaller than the diameter of the rivet head. Therefore, when the rivets are arranged on the guide rails 12, the rivet bodies are embedded between the guide rails, while the rivet heads rest on the guide rails, ensuring that the rivets on the guide rails 12 are aligned with their heads facing upwards and arranged in a single row. (Continue referring to...) Figure 1 As shown, a support frame 20 is installed approximately in the middle or slightly above the middle of the guide rail 12, and the guide plate 11 is mounted on the support frame 20. (Reference) Figure 4As shown, the guide plate 11 forms inclined sidewalls on both sides of the guide rail 12, creating a V-shaped cross-section. Rivets falling from the guide hopper 10 are guided by the guide plate 11 onto the guide rail 12. Due to the spacing of the guide rails, the rivets falling from the guide hopper 10 are adjusted in posture by the guide plate 11 and guide rail 12, so that the rivet heads face upwards and they are arranged in a single row on the guide rail 12. Since the guide rail 12 is also inclined, under the influence of gravity, the rivets will slide onto the second end of the guide rail. (Reference) Figure 1 As shown, the counting sensor module 14, as a counting component, is mounted on the fixed frame 13. The counting sensor module 14 is positioned close to the guide rail 12. When a rivet on the guide rail 12 passes by the counting sensor module 14, the counting sensor module 14 counts the rivets and sends the counting information to the counter 18. The rivets are loaded in the hopper 7. In one embodiment, the bottom of the hopper 7 is inclined, with the second end higher than the first end, so that the bottom of the hopper 7 is inclined towards the rotating disk 5. In this way, the rivets placed in the hopper 7 will slide towards the rotating disk 5 by gravity.

[0028] The working process of the rivet counting and sorting machine is as follows: Rivets are fed into the hopper 7, and the counter 18 is operated by the controller 17 to set the required number of rivets. The servo motor 4 is driven by the controller 17, which drives the rotating disk 5 to rotate. The magnetic stone 6 on the rotating disk 5 attracts the rivets in the hopper 7. The rivets are attracted to the rotating disk 5 and rotate with it. The attracted rivets enter the guide hopper 10 from the hopper 7 through the limiting component. Because the limiting groove 19 on the second connecting block 9 is designed to allow only one rivet to pass through, when the rivets pass through the limiting component composed of the first connecting block 8 and the second connecting block 9, the rivets can only pass through one by one and fall into the guide hopper 10. As described above, the rivets falling into the guide hopper 10 will slide down to the second end of the guide hopper under the action of gravity and fall onto the guide plate 11 and the guide rail 12. As described above, the rivets falling from the guide hopper 10 are adjusted in posture by the guide plate 11 and guide rail 12, so that the rivet heads face upwards and are arranged in a single row on the guide rail 12. Since the guide rail 12 is inclined towards the second end, the rivets arranged in a single row continue to slide to the second end of the guide rail 12 under the action of gravity and are neatly arranged at the second end of the guide rail 12. When the rivets slide along the guide rail, they pass through the counting sensor module 14, which counts the rivets and sends the count information to the counter 18. When the count reaches a predetermined number, the controller 17 stops the servo motor 4 and no longer retrieves rivets from the hopper 7. At this time, the operator can directly remove the rivets from the guide rail 12, as these rivets have been arranged and counted.

[0029] In this rivet counting and aligning machine, the magnetic stone 6 on the rotating disk 5 is a key component. Rivets in the hopper 7 are attracted by the magnetic force of the magnetic stone 6 and, following the rotation of the rotating disk 5, are conveyed from the hopper 7 to the guiding assembly. After a period of use, the magnetic stone 6 may need to be replaced. To facilitate the replacement of the magnetic stone 6, the rivet counting and aligning machine of this invention is designed with the following structure. (Reference) Figure 1 and Figure 7 As shown, Figure 7 for Figure 1 Enlarged view of point A. A mounting groove 21 is provided on the rotating disk 5, and the magnetic stone 6 is installed in the mounting groove 21. Figure 7 The diagram illustrates the structure of a mounting slot 21 and a magnetic stone 6. As previously described, four magnetic stones 6 are mounted on the rotating disk 5, corresponding to four mounting slots 21. Each magnetic stone 6 is installed in one mounting slot 21. At each mounting slot 21, a fixing plate 23 is fixedly connected to the rotating disk 5. The fixing plate 23 is fixedly connected to the side of the rotating disk 5 facing the work box 2 (the upper side shown in the figure). Figure 6 A rear view structural schematic diagram of the rotating disk of a rivet counting and aligning machine according to an embodiment of the present invention is disclosed. Here, "rear view" refers to the structure of the rotating disk 5 viewed from the direction of the work box 2, such as... Figure 6 As shown, viewed from the rear, four fixed plates 23 are fixedly connected to the rotating disk 5. Each fixed plate is equipped with a magnetic stone, and the four fixed plates 23 are distributed at equal intervals on the same circumference. (Continue to refer to...) Figure 7 Each fixed plate 23 has a placement groove 24, in which a mounting block 22 is placed. The mounting block 22 has a retaining ring 37 on the side facing the work box 2 (the upper side shown in the figure), and a fixing block 40 on the side facing the work frame 1 (the lower side shown in the figure). The fixing block 40 protrudes from the surface of the fixed plate 23 and extends into the mounting groove 21 of the rotating disk 5. The fixing block 40 is connected to the magnetic stone 6, and the magnetic stone 6 is fixed by the fixing block 40. Through this structure, four magnetic stones 6 are installed and fixed onto the rotating disk 5.

[0030] Figure 5 A schematic diagram of the structure of the fixing plate of a rivet numbering and aligning machine according to an embodiment of the present invention is disclosed. Figure 8 for Figure 5 Enlarged view of section B in the middle. (Reference) Figure 5 As shown, the fixed plate 23 has a transmission cavity 25 and a moving groove 27. The directions of the transmission cavity 25 and the moving groove 27 are perpendicular to each other, and a moving groove 27 is connected to each end of the transmission cavity 25. Figure 5In the illustrated embodiment, the transmission cavity 25 is located at the top of the fixed plate 23, and is shown horizontally. Two moving slots 27 are shown vertically, located at opposite ends of the transmission cavity 25, extending downwards along the two side edges of the fixed plate 23. A bidirectional lead screw 26 is installed within the transmission cavity 25, shown horizontally. A push plate 28 is installed within each moving slot 27, shown vertically. One end of the push plate 28 (the upper end in the figure) is threaded to the bidirectional lead screw 26, and the other end (the lower end in the figure) is fitted with a locking post 29, which faces inwards, protruding from the push plate 28 towards the mounting block 22. Correspondingly, the mounting block 22 has a slot 30 located on both sides of its edge, corresponding to the locking post 29. The locking pin 29 is embedded in the locking groove 30, and the push plate 28 fixes the mounting block 22 to the fixing plate 23. In one embodiment, the push plates 28 on both sides are installed on the bidirectional lead screw 26 at opposite thread positions, and the installation positions of the push plates 28 on both sides are symmetrical with respect to the center line of the fixing plate 23. Thus, when the bidirectional lead screw 26 rotates, the push plates 28 on both sides simultaneously separate to the sides, causing the locking pin 29 to exit the locking groove 30; when the bidirectional lead screw 26 rotates in the other direction, the push plates 28 on both sides simultaneously move inward, causing the locking pin 29 to re-enter the locking groove 30. (Reference) Figure 8 The enlarged structure shown depicts a transmission groove 31 on the fixed plate 23, located at its edge and adjacent to the transmission cavity 25. A bidirectional lead screw 26 extends from the transmission cavity 25 into the transmission groove 31. A worm gear 33 is fitted onto the portion of the bidirectional lead screw 26 located in the transmission groove 31, and the worm gear 33 rotates coaxially with the bidirectional lead screw 26. A worm 34 is installed in the transmission groove 31, with one end (the lower end shown in the figure) installed in the groove and the other end (the upper end shown in the figure) having a second bevel gear 36. The worm gear 33 and the worm 34 mesh to form a transmission connection. A transmission rod 32 is installed on the side of the transmission groove 31 away from the bidirectional lead screw 26. One end of the transmission rod 32 is installed inside the transmission groove 31, and the other end extends outside the transmission groove 31 (i.e., the fixed plate 23). A knob 38 is installed on the end of the transmission rod 32 extending outside the transmission groove 31. A first bevel gear 35 is installed on the portion of the transmission rod 32 located inside the transmission groove 31. The first bevel gear 35 and the second bevel gear 36 mesh to form a transmission connection. Thus, the transmission rod 32, the worm gear 34, and the double-acting lead screw 26 form a worm gear transmission mechanism via the first bevel gear 35, the second bevel gear 36, and the worm wheel 33. (Back) Figure 1 As shown, a side door 41 is provided on one side of the work box 2, and a handle 39 is provided on one side of the side door 41. By opening the side door 41 through the handle 39, the rotating disk 5 can be operated to replace the magnetic stone 6.

[0031] The process of replacing the magnetic stone 6 is as follows: The operator opens the side door 41 through handle 39, opening the interior of the work box 2. Then, the operator rotates the knob 38 of the transmission rod 32. The transmission rod 32 drives the second bevel gear 36 to rotate through the first bevel gear 35. The second bevel gear 36 drives the worm wheel 33 to rotate through the worm gear 34, causing the double-acting screw 26 to rotate. The double-acting screw 26 drives the two push plates 28 to move to both sides. The push plates 28 drive the locking pin 29 to move out of the locking slot 30, unlocking the mounting block 22. The operator removes the mounting block 22, the fixing block 40, and the magnetic stone 6 through the buckle 37. Then, the new magnetic stone 6 is inserted into the mounting slot 21, and the mounting block 22 is installed. The fixing block 40 then fixes the magnetic stone 6 in the mounting slot 21. Then, the operator resets the transmission rod 32 by turning knob 38. The transmission rod 32 drives the second bevel gear 36 to reset and rotate via the first bevel gear 35. The second bevel gear 36 drives the worm wheel 33 to reset and rotate via the worm gear 34, causing the bidirectional lead screw 26 to reset and rotate. The bidirectional lead screw 26 drives the push plate 28 to reset and move. The push plates 28 on both sides move inward, causing the locking pin 29 to embed into the locking slot 30, thereby fixing the mounting block 22 and the magnetic stone 6. After replacing one magnetic stone, the output end of the servo motor 4 drives the rotating disk 5 to rotate, causing another magnetic stone 6 to rotate to the position of the open side door 41, so that the next magnetic stone 6 can be replaced.

[0032] The rivet counting and aligning machine of the present invention has the following beneficial effects: 1) This rivet sorting machine is equipped with a hopper, a rotating disk, and magnetic stones. Rivets are poured into the hopper, and then the output of the servo motor drives the rotating disk to rotate. The magnetic stones attract the rivets inside the hopper, and the magnetic stones carry the rivets through a limiting groove into the guide hopper. During the process of passing through the limiting groove, the magnetic stones can only drop the rivets into the guide hopper one by one, so that the rivets can be automatically grabbed. Through the specially designed guide hopper, guide plate and guide rail, the rivets are arranged in order with the large end facing up, so as to facilitate the workers to pick up the rivets.

[0033] 2) This rivet counting and aligning machine is equipped with a counting sensor module, a guide rail, and a counter. The rivets on the guide rail slide to one end of the guide rail. The counting sensor module counts the rivets. When the counter detects that the number of counted rivets has reached the set number of rivets, the servo motor stops working. Then the operator removes the counted and aligned rivets from the guide rail, thus enabling the counting of rivets and facilitating their use.

[0034] It should also be noted that the embodiments listed above are merely specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and similar changes or modifications made thereto are those that can be directly derived or easily conceived by those skilled in the art from the content disclosed in the present invention, and should all fall within the protection scope of the present invention. The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope conforming to the innovative features mentioned in the claims.

Claims

1. A rivet numbering and aligning machine, characterized in that, include: The work rack (1) and the work box (2) are arranged adjacent to each other and fixedly connected; The work box (2) is equipped with a control mechanism, a drive mechanism and a material picking mechanism. The material picking mechanism is installed at the junction of the work frame (1) and the work box (2). The drive mechanism drives the material picking mechanism to move. The control mechanism is connected to the drive mechanism. The work frame (1) is equipped with a hopper (7), a limiting component, a guiding component and a counting component. The hopper (7) and the guiding component are arranged adjacent to each other. The limiting component is installed between the hopper (7) and the guiding component. The counting component is installed in a position adjacent to the guiding component. The counting component is connected to the control mechanism. Rivets are loaded in the hopper (7). The control mechanism controls the drive mechanism to drive the picking mechanism to move. The picking mechanism picks up the rivets from the hopper (7) and drives the rivets through the limiting component and into the guiding component. The limiting component allows only one rivet to pass through at a time. The rivets that enter the guiding component adjust their posture and are arranged into a single column. The rivets arranged into a single column pass through the counting component. The counting component counts the rivets. When the count reaches a predetermined number, the control mechanism stops the drive mechanism. The material guiding assembly includes a guide hopper (10), a guide plate (11), and a guide rail (12). The first end of the guide rail (12) extends to the bottom of the second end of the guide hopper (10), and the second end of the guide rail (12) extends to the position of the second end of the work frame (1). The guide rail (12) is inclined, and the first end of the guide rail (12) is higher than the second end. The spacing of the guide rail (12) matches the size of the rivet. The spacing is greater than the diameter of the rivet body but less than the diameter of the rivet head. The guide plate (11) forms inclined sidewalls on both sides of the guide rail (12). The rivets falling from the guide hopper (10) are guided by the guide plate (11) to the guide rail (12). The rivets falling from the guide hopper (10) are adjusted in posture by the action of the guide plate (11) and the guide rail (12) so that the rivets are arranged in a single row on the guide rail (12) with the rivet head facing upward. The limiting component includes a first connecting block (8) and a second connecting block (9). The first connecting block (8) and the second connecting block (9) are installed on the top of the hopper (7). The second connecting block (9) is located on one side of the first connecting block (8). A limiting groove (19) is provided at one end of the second connecting block (9). The limiting groove (19) extends to the position of the first connecting block (8). The size of the limiting groove (19) only allows a single rivet to pass through. The limiting groove (19) starts from the position of the second connecting block (9) and extends to the position of the first connecting block (8); the side wall of the guide bucket (10) is inclined, forming a shape that gradually opens from the bottom up, and the bottom of the guide bucket (10) is also inclined, with a higher position near the first end and gradually decreasing towards the second end; the inclined side walls formed by the guide plate (11) on both sides of the guide rail (12) form a V-shaped cross-section.

2. The rivet numbering and aligning machine as described in claim 1, characterized in that, The drive mechanism includes a servo motor (4), and the material handling mechanism includes a rotary disk (5). Inside the work box (2), a connecting frame (3) is installed at one end near the work frame (1). A servo motor (4) is installed on the connecting frame (3). The output end of the servo motor (4) extends to the junction of the work frame (1) and the work box (2). The output end of the servo motor (4) is installed on the rotating disk (5). The rotating disk (5) is located at the junction of the work box (2) and the work frame (1). A magnetic stone (6) is installed on the rotating disk (5). The servo motor (4) drives the rotating disk (5) to rotate. The rivets in the hopper (7) are obtained by adsorption through the magnetic stone (6).

3. The rivet numbering and aligning machine as described in claim 1, characterized in that, The control mechanism includes a controller (17) and a counter (18), and the counting component includes a counting sensing module (14). Inside the work box (2), a connecting plate (16) is installed at the end away from the work frame (1). A controller (17) and a counter (18) are installed on the connecting plate (16). The counter (18) is electrically connected to the counting sensor module (14). The counter (18) controls the counting sensor module (14) to count. The controller (17) is electrically connected to the servo motor (4), the counting sensor module (14) and the counter (18). The controller (17) controls the servo motor (4), the counting sensor module (14) and the counter (18).

4. The rivet numbering and aligning machine as described in claim 1, characterized in that, The second end of the guide rail (12) is fixed on the mounting bracket (15). The mounting bracket (15) is located near the second end of the work frame (1). The middle part of the guide rail (12) is supported by the fixing bracket (13). The fixing bracket (13) is installed on the half of the guide rail (12) near the second end. The height of the fixing bracket (13) is higher than that of the mounting bracket (15). A support frame (20) is installed on the guide rail (12), and a guide plate (11) is installed on the support frame (20).

5. The rivet numbering and aligning machine as described in claim 1, characterized in that, The bottom of the hopper (7) is inclined, and the second end of the bottom of the hopper (7) is higher than the first end.

6. The rivet counting and aligning machine as described in claim 2, characterized in that, The rotating disk (5) has an installation groove (21) and the magnetic stone (6) is installed in the installation groove (21). The rotating disk (5) is fixedly connected to the mounting plate (23) at the position of the mounting groove (21). The mounting plate (23) has a placement groove (24) and a mounting block (22) is placed in the placement groove (24). The mounting block (22) has a buckle (37) on the side facing the work box (2) and a fixing block (40) on the side facing the work frame (1). The fixing block (40) protrudes from the surface of the fixing plate (23) and extends into the installation groove (21). The magnetic stone (6) is fixed by the fixing block (40).

7. The rivet numbering and aligning machine as described in claim 6, characterized in that, The fixed plate (23) has a transmission cavity (25) and a moving groove (27). The directions of the transmission cavity (25) and the moving groove (27) are perpendicular to each other. A moving groove (27) is connected to each end of the transmission cavity (25). A double-acting screw (26) is installed in the transmission cavity (25). A push plate (28) is installed in each moving groove (27). One end of the push plate (28) is threaded to the double-acting screw (26). The two push plates (28) are installed on the double-acting screw (26) at opposite thread positions. A locking pin (29) is installed on the other end of the push plate (28). The locking pin (29) protrudes from the push plate (28) toward the mounting block (22). The mounting block (22) has a locking groove (30). The position of the locking groove (30) corresponds to the locking pin (29). The locking pin (29) is embedded in the locking groove (30). The push plate (28) fixes the mounting block (22) on the fixed plate (23).

8. The rivet numbering and aligning machine as described in claim 7, characterized in that, A transmission groove (31) is provided on the fixed plate (23). A double-acting lead screw (26) extends from the transmission cavity (25) into the transmission groove (31). A worm wheel (33) is fitted on the part of the double-acting lead screw (26) located in the transmission groove (31). A worm (34) is installed in the transmission groove (31). One end of the worm (34) is installed in the transmission groove (31), and the other end of the worm (34) has a second bevel gear (36). The worm wheel (33) and the worm (34) mesh to form a transmission connection. A transmission rod (32) is installed on the side of the transmission groove (31) away from the bidirectional lead screw (26). One end of the transmission rod (32) is installed inside the transmission groove (31), and the other end extends outside the transmission groove (31). A knob (38) is installed on the end of the transmission rod (32) that extends outside the transmission groove (31). A first bevel gear (35) is installed on the part of the transmission rod (32) located inside the transmission groove (31). The first bevel gear (35) and the second bevel gear (36) mesh to form a transmission connection.

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